The Flying Fool (1929)

Bill Taylor, World War I flying ace is a hot-shot barnstormer, with his kid-brother, Jimmy, as one of his crew members. Jimmy falls in love with a nightclub singer, Pat Riley, and his older-brother thinks that Jimmy may be involved with a hard-bitten floozy and decides to check her out for himself. What he finds is a sweet and home-loving daughter working to provide for her sweet-and-loving mother. He falls for her, and this upsets the younger brother no end.